All 305,250 crates, alphabetically

symbolic-unrealParsing and processing utilities for Unreal Engine 4 crash files.346,764MIT symbolic_expressionsA symbolic-expression parser/writer3,030,966MIT/Apache-2.0EncodingParsing tools symbolic_mathA Rust library for performing symbolic mathematics. Supports basic arithmetic operations, expression simplification, and…4,116MIT symbolic_polynomialsA library for manipulation of polynomials over the integers.17,315Apache-2.0 symbolic_regressionRust port of SymbolicRegression.jl.381Apache-2.0AlgorithmsMathematics symbolic_regression_wasmWASM bindings for symbolic_regression (browser-friendly wrapper via wasm-bindgen).180Apache-2.0AlgorithmsMathematics symbolicaA blazing fast computer algebra system42,753non-standardScience symbolica-integrateSymbolic integration for Symbolica, based on the Rubi integration rules78MITScience symbolicatesymbolicate a macOS crash report4,728MIT symbolics_calculusCalculus module for the symbolics computer algebra library8,634MIT symbolics_coreCore expression module for the symbolics computer algebra library6,831MIT symboliqueSymbol table pipeline for language servers — parse, link, merge, and resolve symbols across files, built on the laburnum LSP…54BlueOak-1.0.0CompilersDevelopment tools symbolismUnique symbols made from human readable tags.1,703MIT OR Apache-2.0No standard libraryNo standard library::No dynamic allocation symbolizeThis crate allows you to convert raster images into their symbolic versions14,366MIT symbolizer-rsA fast execution trace symbolizer for Windows that runs on all major platforms and doesn't depend on any Microsoft libraries.2,308MITCommand line utilitiesDevelopment tools::Debugging symbolmap-traitA trait for generic implementation of symbol tables5,465MIT/Apache-2.0Data structures symbologyl2Symbology normalization and translation for listed US equities5,533MIT symbolsProc-macro utility to populate enums from database data18,245WTFPLData structuresDatabase interfaces symbols-modelsProc-macro utility to populate enums from database data (shared traits)19,762WTFPLData structuresDatabase interfaces symboltableContains a symbol table1,818MIT symboscript-analyzerSymboScript analyzer2,621MITCompilers symboscript-formatterSymboScript formatter18,153MITCompilers symboscript-interpreterSymboScript interpreter18,137MITCompilers symboscript-lexerSymboScript lexer24,009MITCompilers symboscript-optimizerSymboScript optimizer19,958MITCompilers symboscript-parserSymboScript parser23,536MITCompilers symboscript-typesA symbolic programming language SymboScript types26,162MITCompilers symboscript-utilsSymboScript utils25,941MITCompilers symcc_libaflMeta package for symcc_runtime24,495MIT OR Apache-2.0Development tools::TestingEmbedded development symcc_runtimeBuild Concolic Tracing tools based on SymCC in Rust23,395MIT OR Apache-2.0Development tools::TestingEmbedded development symcodeSymbolic Barcode - Programming Library2,437MIT OR Apache-2.0Computer vision symcode-webappSymbolic Barcode - Web App1,598MIT OR Apache-2.0Computer vision symcryptFriendly and Idiomatic Wrappers for SymCrypt92,190MIT OR Apache-2.0 symcrypt-sysRust/C Bindings for SymCrypt89,670MIT OR Apache-2.0 symdepCommand line tool to show the imports and exports of binaries.20MIT symdiffCompile-time symbolic differentiation for Rust via a proc-macro attribute. Generates closed-form gradients at compile time.74MITMathematicsNo standard library symdisSymbolic disassembler for Mozilla crash report analysis140MPL-2.0Command line utilitiesDevelopment tools::Debugging symengineUnofficial Rust wrappers to the C++ library SymEngine, a fast C++ symbolic manipulation library.9,627BSD-3-Clause symengine-sysUnofficial Rust wrappers to the C++ library SymEngine, a fast C++ symbolic manipulation library.7,959BSD-3-Clause symexprA libray to build symbolic expression and evaluation.1,217MIT OR Apache-2.0Science symexrsSymexrs: A concolic execution engine for async Rust25Apache-2.0Development tools::Testing symforgeSymForge — in-memory code intelligence MCP server for Claude Code, Codex, and Gemini CLI2,974non-standard symfreqA CLI tool for analyzing symbol frequency in source code426MITCommand line utilities symfwebapiRust client for Symfonia WebAPI.23BSD-3-ClauseAPI bindingsNetwork programming symgraphSemantic code intelligence library and MCP server - build knowledge graphs of codebases432MITCommand line utilitiesDevelopment tools symgrepsymgrep is a binary file search tool that recursively searches a directory for symbols matching a regex pattern. Cross platform…70non-standard symjita lightweight just-in-time (JIT) optimizer compiler3,109MITCompilersHardware support symjit-bridgea bridge bwtween Symjit compiler and Symbolica CAS351MITCompilersHardware support symkeeperSymlink management tool822MIT symlSYML is a configuration language similar to YAML, but may be more user-friendly15,895MIT symlensToken-efficient code intelligence CLI powered by tree-sitter — search symbols, call graphs, and impact analysis without reading…376MITCommand line utilitiesDevelopment tools symlinkCreate symlinks in a cross-platform manner17,673,205MIT/Apache-2.0Filesystem symlink-rsCreate symlinks in a cross-platform manner9,799BlueOak-1.0.0 OR MIT OR Apache-2.0Filesystem symlinkcccA small tool for linking compile commands from catkin builds3,969MITCommand line utilitiesDevelopment tools symlistSimple CLI to manage and sync a list of symbolic links20MITCommand line utilitiesFilesystem symmSimple dotfiles manager3,934MIT symm_implAttribute macro that automatically implements a symmetric trait7,700MIT OR Apache-2.0No standard libraryRust patterns symmanA cross-platform symlink manager CLI tool.39LGPL-3.0-or-later symmetriaThe simple numerical library.1,280MIT symmetric-interaction-calculusA programming language and model of computation that matches the abstract algorithm perfectly.15,851MIT symmetric-keyA small crate implementing asn1 structures for symmetric key packaging.997MIT OR Apache-2.0Cryptography symmetric-shadowcastingSimple implementation of the shadow casting FOV algorithm7,890CC0-1.0 symmetrical-sporkIgnore me, just for testing3,792MIT symmetrySymmetry: Interstellar-themed Quantitative Trading Engine40MIT symmetry-sharedShared Data Structures414MIT symoA simple DWM status bar for FreeBSD2,619BSD-2-ClauseCommand line utilities symorFile‑mirroring utility (sym‑mirror).369MITCommand line utilities symoxideIntermediate Representation and Transformations for Computer Algebra Systems3,813MIT symoxide_macrosDefines procedural macros to go along with symoxide2,293MIT sympsymlink farm manager that utilizes configuration files to define symlink mappings163MIT OR Apache-2.0Command line utilities symparserParser implementation of the SYM file format conceived by PEAK-System2,781MIT/Apache-2.0Command line utilities symphoniaPure Rust media container and audio decoding library.8,881,058MPL-2.0MultimediaMultimedia::Audio symphonia-adapter-fdk-aacAdapter to use FDK AAC with Symphonia4,327(MIT OR Apache-2.0) AND MPL-2.0MultimediaMultimedia::Audio symphonia-adapter-libopusAdapter to use libopus with Symphonia456,329MIT OR Apache-2.0MultimediaMultimedia::Audio symphonia-adapter-oporusAdapter to use oporus pure-Rust Opus decoder with Symphonia332LGPL-2.1 symphonia-bundle-flacPure Rust FLAC demuxer and decoder (a part of project Symphonia).6,416,070MPL-2.0MultimediaMultimedia::Audio symphonia-bundle-mp3Pure Rust MP1, MP2, and MP3 demuxer and decoder (a part of project Symphonia).8,144,995MPL-2.0MultimediaMultimedia::Audio symphonia-codec-aacPure Rust AAC decoder (a part of project Symphonia).5,672,468MPL-2.0MultimediaMultimedia::Audio symphonia-codec-adpcmPure Rust ADPCM audio decoder (a part of project Symphonia).4,839,997MPL-2.0MultimediaMultimedia::Audio symphonia-codec-alacPure Rust ALAC decoder (a part of project Symphonia).2,701,162MPL-2.0MultimediaMultimedia::Audio symphonia-codec-pcmPure Rust PCM audio decoder (a part of project Symphonia).6,484,380MPL-2.0MultimediaMultimedia::Audio symphonia-codec-vorbisPure Rust Vorbis decoder (a part of project Symphonia).6,936,120MPL-2.0MultimediaMultimedia::Audio symphonia-commonProject Symphonia utilities for codecs and formats.317,726MPL-2.0MultimediaMultimedia::Audio symphonia-coreProject Symphonia shared structs, traits, and features.9,118,004MPL-2.0MultimediaMultimedia::Audio symphonia-format-cafPure Rust CAF demuxer (a part of project Symphonia).1,990,811MPL-2.0MultimediaMultimedia::Audio symphonia-format-isomp4Pure Rust ISO/MP4 demuxer (a part of project Symphonia).5,372,234MPL-2.0MultimediaMultimedia::Audio symphonia-format-mkvPure Rust MKV/WebM demuxer (a part of project Symphonia).4,557,649MPL-2.0MultimediaMultimedia::Audio symphonia-format-oggPure Rust OGG demuxer (a part of project Symphonia).6,479,466MPL-2.0MultimediaMultimedia::Audio symphonia-format-riffPure Rust RIFF demuxer (a part of project Symphonia).6,061,763MPL-2.0MultimediaMultimedia::Audio symphonia-format-wavPure Rust WAV demuxer (a part of project Symphonia).520,215MPL-2.0MultimediaMultimedia::Audio symphonia-metadataProject Symphonia multimedia tag and metadata readers.9,009,630MPL-2.0MultimediaMultimedia::Audio symphonia-utils-xiphProject Symphonia utilities for Xiph codecs and formats.6,885,251MPL-2.0MultimediaMultimedia::Audio symphonia-wemSymphonia demuxer for Wwise Encoded Media files18AGPL-3.0-or-laterGame developmentMultimedia symphoniumAn unofficial easy-to-use wrapper around Symphonia for loading audio files42,657MIT OR Apache-2.0MultimediaMultimedia::Audio symphonizesymphonize is a tool for running integration tests across services11,763Apache-2.0 symphonyEclipse Symphony Target Provider Rust binding6,300MIT symphony-agentCoding agent runner and protocol handler for Symphony139Apache-2.0 symphony-cliOrchestration engine for coding agents — polls issue trackers, creates workspaces, and runs AI coding sessions28Apache-2.0Command line utilitiesDevelopment tools symphony-configConfiguration loading, validation, and template rendering for Symphony233Apache-2.0 symphony-coreDomain model and shared types for Symphony orchestration engine382Apache-2.0 symphony-observabilityStructured logging, HTTP dashboard, and JSON API for Symphony86Apache-2.0 symphony-orchestratorPoll-and-dispatch scheduler for Symphony coding agent orchestration86Apache-2.0 symphony-trackerIssue tracker integration (Linear GraphQL) for Symphony186Apache-2.0 symphony-workspaceWorkspace management and hook execution for Symphony140Apache-2.0 symphonyscriptOfficial placeholder for the SymphonyScript Generative Music Platform23MIT symphoxyA music-as-code library and synthesizer for rust.3,219MPL-2.0Development toolsMultimedia::Audio symplectic-fleetFleet state modeled as a symplectic manifold with Hamiltonian evolution, Noether conservation laws, and structure-preserving…17MITMathematicsScience symplectic-geometrySymplectic geometry, Hamiltonian systems, and symplectic integrators — pure Rust, zero dependencies18MITMathematicsScience symplectic-optSymplectic optimization, conservation-law-encoded training, and Hamiltonian neural networks22MITMathematicsScience symplectic-spinSymplectic integrators: Euler drifts, Verlet conserves. Spin abstracts time as distance.18Apache-2.0 symposiumAI the Rust Way373MIT OR Apache-2.0 symposium-acp-agentSymposium-enriched ACP agent that wraps downstream agents with enhanced capabilities335Apache-2.0 symposium-acp-proxySymposium ACP proxy - orchestrates component chains to enrich agent capabilities234Apache-2.0 symposium-cargoSymposium Cargo proxy - an MCP server connecting to Cargo and a ACP Proxy managing it298MIT or Apache-2.0 symposium-crate-sources-proxyACP proxy component providing Rust crate source code research tools155Apache-2.0 symposium-ferrisFerris MCP server - helpful tools for Rust development288Apache-2.0 symposium-recommendationsRecommendation types and parsing for Symposium agent mods74Apache-2.0 symposium-rtkFork of Rust Token Killer for internal use with Symposium109MIT symposium-rust-analyzerSymposium rust-analyzer proxy - an MCP server connecting to rust-analyzer and a ACP Proxy managing it64MIT or Apache-2.0 symprojCodebook-based token-to-vector projection261MIT OR Apache-2.0AlgorithmsScience symptomA crate for building game engines in Rust3,638MIT symrComputer algebra system written in Rust1,620BSD-3-Clause symrsUnofficial Rust wrapper to symengine library1,571GPL-3.0-only symsFast project-wide symbol search using tree-sitter69MITCommand line utilitiesDevelopment tools symscanFast discovery of similar strings in bulk112MIT OR Apache-2.0 symscopeFast, local code navigation: find definitions, references, and call graphs across your repo — powered by tree-sitter. No index…18MIT OR Apache-2.0Command line utilitiesDevelopment tools symspellSpelling correction & Fuzzy search164,784MITAlgorithmsText processing symspell_complete_rapidtypo-tolerant autocomplete in Rust (based on symspell_complete_rs, replace gxhash with rapidhash)21MITData structuresDatabase implementations symspell_complete_rstypo-tolerant autocomplete in Rust1,002MITData structuresDatabase implementations symspell_rsSpelling correction & Fuzzy search1,580MITData structuresDatabase implementations symspellrsRust compile time library for symspell313MIT OR Apache-2.0 symspellrs-macrosProc-macro crate providing compile-time dictionary embedding for symspellrs307MIT OR Apache-2.0 symsrvA Microsoft symsrv symbol server consumer (downloader + cache)664,956MIT/Apache-2.0 symtab-hcSymbol table implementation with hash consing, interning, and scope management for compiler infrastructure17MITData structuresDevelopment tools symternFast general-purpose interners for every use case5,679Apache-2.0/MIT symthaea-consciousness-equationMaster Consciousness Equation — 7-theory synthesis of IIT, GWT, HOT, attention, embodiment, knowledge, and synchrony into a…2,627AGPL-3.0-or-laterScienceSimulation symthaea-coreCore primitives for Symthaea: 16,384D hyperdimensional computing, Phi engine, LTC neural dynamics, and consciousness structures.…45AGPL-3.0-or-laterAlgorithmsScience symthaea-fepFree Energy Principle active inference — generative models, precision-weighted prediction errors, and motor control24AGPL-3.0-or-laterAlgorithmsScience symthaea-typesShared types for the Symthaea ecosystem — Eight Harmonies, value alignment, and common enums18AGPL-3.0-or-laterScience symthaea-wisdomPhilosophical grounding — harmonics, autopoiesis, and meta-cognition for computational consciousness18AGPL-3.0-or-laterAlgorithmsScience symtoolsymtool edits static symbol tables of MachO and ELF object files and archives4,265MIT OR Apache-2.0Command line utilitiesDevelopment tools::Build Utils symtool-backendsymtool-backend provides the symbol manipulation framework for the symtool utility3,900MIT OR Apache-2.0Command line utilitiesDevelopment tools::Build Utils symtraceA deterministic semantic diff engine using AST-based structural analysis61MITCommand line utilitiesDevelopment tools symtropy-bevyDrop-in Bevy plugin for Phi-coupled N-dimensional physics. Builds on the permissive symtropy-bevy-core plugin, adding…36AGPL-3.0-or-laterGame enginesSimulation symtropy-bevy-corePermissively-licensed Bevy plugin for symtropy-physics N-dimensional physics. Generic over PhysicsCallback.103Apache-2.0 OR MITGame engines symtropy-bevy-sceneOpinionated scene/camera/light scaffolding for Bevy applications. Eliminates the camera-light-clearcolor boilerplate every…34Apache-2.0 OR MITGame enginesRendering symtropy-consciousness-physicsIntegrated information (Phi) as a first-class physics parameter: 5-channel coupling, thermodynamic closure with Landauer bound,…2,610AGPL-3.0-or-laterGame enginesScience symtropy-coreThe permissive Symtropy distribution: core Bevy physics bundle without AGPL dependencies.18Apache-2.0 OR MITGame engines symtropy-devconsoleDrop-in Bevy dev console: bevy-inspector-egui's world inspector + a Symtropy-specific Phi/scene-control panel. Toggle with F1.34Apache-2.0 OR MITDevelopment toolsGame engines symtropy-fluidSPH-based fluid dynamics primitives for N-dimensional rigid body physics.18Apache-2.0 OR MITScienceSimulation symtropy-mathN-dimensional geometric algebra: const-generic points, bivectors, rotors, and collision shapes (2D/3D/4D+). Stack-allocated,…3,597Apache-2.0 OR MITGame enginesMathematics symtropy-net-corePermissively-licensed core types and traits for symtropy-net.19Apache-2.0 OR MITGame enginesScience symtropy-physicsN-dimensional rigid body physics with GJK+EPA collision, CCD, joints, raycasting, and warm-starting. Pluggable PhysicsCallback…3,542Apache-2.0 OR MITGame enginesScience symtropy-render-bridgeProject N-dimensional physics worlds into Bevy 3D rendering, with first-class 4D cross-section slicing (Miegakure-style). Bridge…19Apache-2.0 OR MITGame enginesRendering symwalkerAdvanced ELF/Mach-O binary scanner with intelligent debug symbol detection and analysis56MIT synParser for Rust source code1,997,204,642MIT OR Apache-2.0Development tools::Procedural macro helpersParser implementations syn-argssyn-args is a library for parsing function arguments.8,087MITDevelopment tools syn-args-derivesyn-args is a library for parsing function arguments.7,161MITDevelopment tools syn-cfg-attrExpand cfg_attr entries in syn attribute lists while preserving guard conditions.1,532MIT OR Apache-2.0 syn-client-typesWire-contract DTOs for the Syn OCR service (POST /api/v1/syn/ocr/extract-json) — one shared definition of the request/response…26AGPL-3.0-only OR LicenseRef-CommercialAPI bindingsData structures syn-codegenSyntax tree describing Syn's syntax tree26,259MIT OR Apache-2.0Development tools::Procedural macro helpers syn-dissect-closureAnalyze syn ExprClosure body578,839MIT syn-error-experimentSyn error experiment1,595MIT/Apache-2.0Development tools::Procedural macro helpers syn-extHuman friendly or editable extension for syn604,686non-standard syn-file-expandLibrary to load full source code of multi-file crates48,471MIT/Apache-2.0Development tools::Procedural macro helpers syn-file-expand-cliCLI tool to read full source code of multi-file crates and output it to stdout5,682MIT/Apache-2.0Command line utilitiesDevelopment tools::Procedural macro helpers syn-foldTrait to transform a syn syntax tree by value.2,262MIT OR Apache-2.0Development tools::Procedural macro helpers syn-grammarA parser generator for Rust that compiles EBNF-like grammars into syn::parse::Parse implementations.187MIT OR Apache-2.0Development toolsParsing tools syn-grammar-macrosProcedural macros for syn-grammar293MIT OR Apache-2.0Development toolsParsing tools syn-grammar-modelShared model and parser for syn-grammar353MIT OR Apache-2.0Development toolsParsing tools syn-graphsgraph description language parsers using syn4,328MIT OR Apache-2.0 syn-helpersFramework for building derive macros61,970MITDevelopment tools::Build UtilsDevelopment tools::Procedural macro helpers syn-impersonatedParser for Rust source code8,549MIT OR Apache-2.0Development tools::Procedural macro helpers syn-inline-modInlines modules in Rust source code for source analysis2,302,354MIT syn-litelimited but lite syntax parsing with only macro_rules6,807MIT syn-locatorA source mapper for syn syntax trees2,334Apache-2.0 OR MIT syn-matcha macro for matching on syn paths1,006,670MIT syn-mergeMerge syn structures by adding cfgs1,461Zlib OR Apache-2.0 OR MITAlgorithmsDevelopment tools::Procedural macro helpers syn-midProviding the features between "full" and "derive" of syn.16,913,032Apache-2.0 OR MITDevelopment tools::Procedural macro helpersParser implementations syn-mietteA `syn::Error` wrapper that provides pretty diagnostic messages using `miette`.6,876MIT OR Apache-2.0 syn-nextParser for Rust source code10,828MIT OR Apache-2.0Development tools::Procedural macro helpers syn-pathA simple macro to declare a syn::Path at compile time94,2570BSDDevelopment tools::Procedural macro helpers syn-preludeprelude traits and helpers for enhancing 'syn'/'proc-macro2' lib16,641MIT syn-prelude-macrosproc macros for syn-prelude7,119MIT syn-pub-itemsParser for Rust source code (patched for pub items)3,535MIT/Apache-2.0Development tools::Procedural macro helpers syn-rsxsyn-powered parser for JSX-like TokenStreams396,064MIT syn-selectA lightweight selector engine for searching Rust source code.2,235,765MIT syn-select-nextA lightweight selector engine for searching Rust source code.35,352MIT syn-semAn experimental semantic analyzer for a subset of Rust22Apache-2.0 OR MIT syn-serdeLibrary to serialize and deserialize Syn syntax trees.88,592Apache-2.0 OR MITDevelopment tools::Procedural macro helpersParser implementations syn-soliditysyn-powered Solidity parser20,560,887MIT OR Apache-2.0Cryptography::CryptocurrenciesData structures syn-test-suiteTest suite of the syn crate149,889MIT OR Apache-2.0 syn-unnamed-structExtends syn expressions and meta structs with unnamed structs and meta lists24,204MIT OR Apache-2.0Development tools::Procedural macro helpersParser implementations syn-utilsUtilities for syn parsing.4,419MPL-2.0 syn-visitTrait to visit a syn syntax tree by shared reference.3,066MIT OR Apache-2.0Development tools::Procedural macro helpers syn-visit-mutTrait to visit a syn syntax tree by mutable reference.2,183MIT OR Apache-2.0Development tools::Procedural macro helpers syn_builderBuilder functions for `syn` structures and enums to ease the generation of Rust code.2,655MIT OR Apache-2.0Development tools::Procedural macro helpersRust patterns syn_crabsA lightweight and configurable logging library with color-coded output for Rust applications.2,566MIT OR Apache-2.0 syn_deriveDerive macros for `syn::Parse` and `quote::ToTokens`21,889,926MIT OR Apache-2.0Development tools::Procedural macro helpers syn_queryimplement Trait Syn::Visit6,389GPL-3.0Development tools::Procedural macro helpers